With the wide spread of computer use and faster Internet access, an increasing number of folks choose to buy daily goods online. Only a few years ago, people only bought small goods on the Internet. The situation now is that many people are purchasing household appliances from online electric stores. The availability of big commodities online is an important reflection of the expanding online market. In the realm of eyewear, the situation is quite similar. Dating back to several years ago, eyeglasses and contact lenses are provided only by local sources. They include traditional optical stores, and later optical departments in shopping malls and even mass merchandisers. In those days, all customers would think it was reasonable for those local vendors to set their prices. Only with the advent of online optical stores, they began to realize the truth. Compared to cheap eye glasses online, those local spectacles are certainly unreasonable to charge such excessively high prices. It is very common to spend several hundred dollars on a pair of prescription eyeglasses from a traditional seller. (more…)